The universe of falsely flagged vessels continues to grow

August 30 ------ Of approximately 430 tankers currently active in the Iran trade, around 62% are falsely flagged and 87% are under sanctions, according to Windward.

The scale of false-flag activity reflects the growing pressure created by the sanctions environment, according to Maya Romi, Maritime Intelligence Content Specialist at Windward. The analysis for Q2 2026 identified 275 internationally trading tankers broadcasting the flag of a fraudulent registry during the quarter.

While this represented a decline from 290 vessels in Q1, the broader fleet of falsely flagged vessels has continued to expand. The IMO database now lists 580 vessels carrying fraudulent flags, up from 550 at the end of Q1 and 470 at the end of 2025. The figures suggest that, although some tankers are moving away from specific fraudulent registries in response to sanctions pressure, the overall number of falsely flagged vessels continues to rise.

The driver is sanctions evasion, as around 90% of tankers using fraudulent registries are Western-sanctioned. False flag broadcasts are the operational tool that lets these tankers continue to trade despite the sanctions restrictions against them. A tanker whose declared flag is Cameroon, Comoros, Palau, or one of the more recently emerged fraudulent registries can present itself to ports, financial counterparties, and insurance markets as a vessel not subject to the enforcement scrutiny it would face if its true operational status were visible.

Two operational realities are driving the surge specifically in 2026:

• The Russia sanctions environment

Russia-linked tankers falsely claimed the flags of Syria and Myanmar during Q2 2026 for the first time. Neither country operates an international ship registry, meaning any tanker broadcasting a Syrian or Myanmar flag is by definition falsely flagged.

Approximately 60 tankers moved from fraudulent registries to Russia’s own flag in the first half of 2026, reflecting the pressure on some fraudulent registries as regulators and industry bodies documented them publicly.

• The Iran trade

Of approximately 430 tankers currently active in the Iran trade, about 62% are falsely flagged, and 87% are sanctioned. The overlap between false flag broadcasts and Iran-trade activity is substantial, reflecting how important false flag operations have become to sustaining Iranian oil exports in the face of ongoing U.S., UK, and EU sanctions.

What this means for compliance and enforcement

The compliance implications of false flag operations extend across multiple stakeholder communities.

• Banks and trade finance teams rely on vessel identity verification as a component of counterparty screening. When a vessel’s declared flag is fraudulent, the vessel’s compliance profile in the bank’s screening system may not reflect its actual sanctions exposure. A transaction cleared on the basis of a false flag broadcast may later be found to have involved a sanctioned vessel operating under an unauthorized flag, exposing the bank to enforcement action.

• Marine insurers and P&I clubs face the same problem in underwriting and claims. A vessel presenting an insurance certificate under one flag may be operating under an entirely different actual identity. Coverage priced against the declared flag may not reflect the actual risk profile the insurer is underwriting. Claims involving falsely flagged vessels may face challenges in coverage determination if the vessel’s actual identity comes to light during investigation.

• Charterers and commodity traders conducting Know Your Vessel (KYV™) checks encounter the same identity uncertainty. A vessel’s ownership chain, operating history, and sanctions status all depend on the vessel being what it claims to be. When the declared flag is false, the entire due diligence pathway becomes suspect.

• Port authorities and marine service providers decide whether to admit, service, or transact with vessels based partly on their declared identity. False flag vessels may pass initial admission checks while operating under an entirely different actual identity than what their documents claim.

• Regulators and enforcement authorities have moved to seize stateless vessels and to designate specific fraudulent registries publicly. Enforcement actions in Q2 2026 documented individual vessels caught operating under fabricated Syrian and Myanmar flags, alongside the earlier documented fraudulent registries.

The false-flag landscape in 2026 reflects continued tension between sanctions enforcement and efforts to evade restrictions. As fraudulent registries are identified and disavowed, new ones emerge, while some tankers shift to Russia’s own flag and others move to newly established fraudulent registries.

Although the composition of the falsely flagged fleet changes from quarter to quarter, its overall size continues to grow. With sanctions pressure on Russia and Iran expected to remain strong, demand for false-flag broadcasts is unlikely to ease in the near term.

Source: safety4sea.com